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Title: Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid state pulverization

Abstract

A method of making polymeric particulates wherein polymeric scrap material, virgin polymeric material and mixtures thereof are supplied to intermeshing extruder screws which are rotated to transport the polymeric material along their length and subject the polymeric material to solid state shear pulverization and in-situ polymer compatibilization, if two or more incompatible polymers are present. Uniform pulverized particulates are produced without addition of a compatibilizing agent. The pulverized particulates are directly melt processable (as powder feedstock) and surprisingly yield a substantially homogeneous light color product.

Inventors:
 [1]
  1. (Skokie, IL)
Issue Date:
Research Org.:
Northwestern University (Evanston, IL)
OSTI Identifier:
871871
Patent Number(s):
5814673
Application Number:
08/639344
Assignee:
Northwestern University (Evanston, IL) OSTI
DOE Contract Number:  
FG51-92R020215
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
reconstituted; polymeric; materials; derived; post-consumer; waste; industrial; scrap; virgin; resins; solid; pulverization; method; particulates; material; mixtures; supplied; intermeshing; extruder; screws; rotated; transport; length; subject; shear; in-situ; polymer; compatibilization; incompatible; polymers; uniform; pulverized; produced; addition; compatibilizing; agent; directly; melt; processable; powder; feedstock; surprisingly; yield; substantially; homogeneous; light; color; product; substantially homogeneous; materials derived; polymeric materials; polymeric material; shear pulverization; scrap material; reconstituted polymeric; virgin polymeric; virgin resins; industrial scrap; polymeric scrap; polymeric particulates; post-consumer waste; light color; /521/241/366/

Citation Formats

Khait, Klementina. Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid state pulverization. United States: N. p., 1998. Web.
Khait, Klementina. Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid state pulverization. United States.
Khait, Klementina. Tue . "Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid state pulverization". United States. https://www.osti.gov/servlets/purl/871871.
@article{osti_871871,
title = {Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid state pulverization},
author = {Khait, Klementina},
abstractNote = {A method of making polymeric particulates wherein polymeric scrap material, virgin polymeric material and mixtures thereof are supplied to intermeshing extruder screws which are rotated to transport the polymeric material along their length and subject the polymeric material to solid state shear pulverization and in-situ polymer compatibilization, if two or more incompatible polymers are present. Uniform pulverized particulates are produced without addition of a compatibilizing agent. The pulverized particulates are directly melt processable (as powder feedstock) and surprisingly yield a substantially homogeneous light color product.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {9}
}

Patent:

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